Dong-Ju Lee

TL;DR: A nickel-rich lithium transition-metal oxide with a very high capacity where the nickel concentration decreases linearly whereas the manganese concentration increases linearly from the centre to the outer layer of each particle is reported.

TL;DR: In this article, a mesoporous hard carbon spherules-sulfur cathode and a stable, highly conducting electrolyte was used to achieve a capacity of 750 mAh g−1 with excellent retention during cycling.

TL;DR: Electrochemical test results indicated that the Co-free materials delivered high capacity with excellent capacity retention and reasonable rate capability, and the cation mixing in Li(Ni0.9Mn0.1)O2 increased slightly even after the extensive cycling at the elevated temperature, ascribed to the structural integrity induced from the optimized synthetic condition using the coprecipitation.

TL;DR: The results, based on X-ray diffraction and galvanostatic charge-discharge analyses, demonstrate the basic reversibility of the electrochemical process of the battery that can be promisingly cycled with a rather high specific capacity.

TL;DR: In this article, an alternative configuration of anode and cathode, i.e., nanostructured Sn-C and hollow carbon spheres-sulphur composite electrodes, is characterized in an ether-based electrolyte for application in sodium ion batteries. And the results reported in this paper show that this cell can provide a remarkable capacity of 550 mA h g−1 and an expected theoretical energy density of 550 W h kg−1.